diff --git a/rtx_timer.go b/rtx_timer.go
index 8be001c1..ceb44301 100644
--- a/rtx_timer.go
+++ b/rtx_timer.go
@@ -10,7 +10,7 @@ import (
 )
 
 const (
-	rtoInitial     float64 = 3.0 * 1000  // msec
+	rtoInitial     float64 = 1.0 * 1000  // msec
 	rtoMin         float64 = 1.0 * 1000  // msec
 	rtoMax         float64 = 60.0 * 1000 // msec
 	rtoAlpha       float64 = 0.125